Jessica B. Verified Customer
"Our girls LOVE GrubTerra! They all come running when they hear the bag rustling."
01/09/2024
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🧪 Lab-Tested Safe · Never Sourced From China

GrubTerra Black Soldier Fly Larvae — The Treat Hens Come Running For!

36% Protein
Calcium-Rich
Lab-Tested Safe
Rated 4.9/5 by 2,255 Happy Customers

Lab-tested safe black soldier fly larvae, never sourced from China. Dried with nothing added and packed with protein and calcium. Your hens are going to love them: shake the bag and watch them come running across the yard.

1. Choose Your Size

2. Choose Your Plan

90-Day Quality Guarantee Ships Within 24 Hours

Ships tomorrow, if ordered within

Add Extras To Your Order

Peck Purity Daily Digestive Defense for Flock Strength
Peck Purity Daily Digestive Defense for Flock Strength

Daily gut support for firmer droppings and cleaner vents.

$32.99
Hen Harmony. The Daily All In One Supplement for Flock Resilience
Hen Harmony. The Daily All In One Supplement for Flock Resilience

Vitamins, probiotics and electrolytes in their water.

$34.95
GrubTerra Coop Refresher. Keeps The Coop Smelling Fresh For Longer!
GrubTerra Coop Refresher. Keeps The Coop Smelling Fresh For Longer!

Keeps the coop smelling fresh for weeks.

$18.95
GrubTerra Hemp Bedding
GrubTerra Hemp Bedding

Soft, absorbent bedding for nesting boxes and coops.

$59.95

"The 10 girls started molting and egg production dropped from 8 eggs a day to 2… After about 4 days of GrubTerra egg production increased to 5 eggs a day. Not bad during molting and humid, hot summer!!"

Laura H. · Verified GrubTerra Customer

Tell Me About:

Nutrition

Ingredients: 100% dried black soldier fly larvae. No additives, no preservatives.

Crude protein36%
Crude fat35%
Crude fiber10%
Calcium2–5%
Lysine1.1%
Phosphorus0.75%
How To Feed

Toss a few handfuls around the run, or sprinkle them over your flock's regular feed, once a day. Hens love to scratch and hunt for them.

📦 STORAGE

Keep the bag sealed in a cool, dry place. Shelf life is 24 months from delivery.

Also great for ducks, turkeys and other fowl, as well as wild birds and fish.

Product Benefits

🪶 Protein For Feathers 36% crude protein helps support feather regrowth, especially through molting season.

🥚 Calcium For Stronger Shells Naturally rich in calcium to support steady laying and strong egg shells.

🐔 A Treat They Run For Chickens were made to forage for bugs. These bring that back to your backyard.

♻️ Upcycled From Food Waste Our larvae are raised on pre-consumer food waste that would otherwise go to landfills.

Real keepers. Real flocks.

The Treat Hens Come Running For

Rated 4.9/5 · Read all 2,255 reviews
  • 🏃‍♀️ They come running
  • 🥚 More eggs
  • 🪶 Feathers back after molt
  • 🐚 Stronger shells
Sara R.'s chickens and rooster waiting for treats
"Everyday the ducks a the chickens line up for their treats. As soon as they hear the sliding door open they rush over as fast as their little legs will waddle"
Sara R. Verified Buyer
"When I first got my Grub Terra I fed my chickens (7) about a cup a day for 3 days. Then only once a week after that. They love them and after feeding them the Grub Terra black fly larva they started producing more and bigger eggs. I also noticed they're feathers looking shinier and healthier."
Guy G. Verified Buyer
"The chickens love it. After a week there is a difference in the shells, getting harder. The yolk has gone back to happy orange! Highly recommend."
Janet B. Verified Buyer
"My girls love Grub Terra! I've given it to them when they are molting to help produce feathers. The girls will chase me down when they see the bag."
Haley B. Verified Buyer
"My chickens love this product. Living in Michigan, we go months without getting eggs from our girls. Adding these to our feed has helped them start laying again! Highly recommend!!"
Kelly Z. Verified Buyer
"My chickens are very picky when it comes to their "treats!" So I was pleasantly surprised when they ALL devoured the Grub Terra treats! My rooster even loved them so much he dove into the bag…"
Cheri L. Verified Buyer

Swipe for more reviews →

Quick Questions

How much should I feed?

Treats should stay under about 10% of what a hen eats, so give up to about 2 tablespoons (10 g) per hen a day, on top of a complete layer feed. Toss them around the run or sprinkle them over the feed. The calculator below works out how long a bag lasts for your flock.

Are your larvae tested for heavy metals?

Yes. Every batch is lab-tested for heavy metals, including lead and arsenic, and comes back safe. They're never grown in China.

Do I need to keep them in the fridge?

No. They're dried, so just keep the bag sealed in a cool, dry place. Shelf life is 24 months from delivery.

Can ducks and other birds have them?

Yes. Keepers feed them to ducks, turkeys, quail and geese, and to wild birds and fish too.

Can I still eat the eggs?

Yes. It's just dried larvae, 100% insect with nothing added. It's food, not medicine, so there's nothing to wait out.

How does Subscribe & Save work?

20% off your first order, then 10% off every refill. Pick a delivery every 1 to 6 months and change it anytime. Orders of $99.99 or more (20 lb and 40 lb) ship free; smaller orders ship for $6.98. Skip, pause or cancel anytime.

The Problem

Signs Your Flock Needs More Than Feed

Most keepers fight these one at a time. They usually come back to the same gap: not enough real protein and calcium, the kind hens are built to forage for.

A molting hen with bare patches and loose feathers

Molting

Bare patches and feathers everywhere. Feathers are about 90% protein, and she stops laying while she regrows them.

A single egg in an empty nest box

Low Egg Production

One egg where there used to be five. Molt, short days and stress all slow the nest box down.

Hens at a feeder of plain layer pellets

Missing Nutrients From Feed

Pellets cover the basics. Hens are built to eat bugs too, and a bare run or a bowl of scratch doesn't give them that.

A cracked, thin-shelled egg in the nest box

Thin Or Soft Shells

Shells that crack in your hand. Every shell is built from calcium, and scratch grains and most treats have very little.

What's really in the bag?

Lab-Tested Safe. Every Batch.

Not all larvae are clean, and most bags never tell you what's been tested. Every batch of ours is lab-tested for heavy metals, including lead and arsenic, and comes back safe.

  • Never grown in China
  • Every batch lab-tested for heavy metals
  • 100% larvae, nothing added

The Solution

Meet GrubTerra Larvae The Bug Hens Were Built To Eat

Chickens are foragers. In the wild they spend their day hunting for bugs. Our dried black soldier fly larvae bring that back to your backyard: protein, fat and calcium in one handful, with nothing added.

  • 36% Protein For Feathers

    Feathers are built from protein. A daily handful helps her regrow through molt and get back to laying.

  • Naturally Rich In Calcium

    2–5% calcium on our label. Calcium is the mineral behind every shell, and scratch grains have very little.

  • Never Grown In China. Lab-Tested.

    Every batch is tested safe for heavy metals. 100% larvae, no additives, no preservatives.

  • Raised On Food Waste

    Our larvae grow on pre-consumer food waste that would otherwise go to landfills. Good for your flock and the planet.

Get Your Bag Today
90-Day Quality PromiseNever grown in ChinaNothing added

Tap To Explore

What's In One Handful?

36%crude protein

Protein: what feathers and eggs are made of

36% crude protein. Feathers are mostly keratin, a protein, and every egg white is protein too. Regrowing a full coat after molt takes a lot of it.

  • Feather regrowth
  • Egg whites
  • Muscle

Guaranteed analysis: crude protein 36% · crude fat 35% · crude fiber 10% · calcium 2–5% · lysine 1.1% · phosphorus 0.75%.

Verified GrubTerra Review
Recently purchased Grubterra after hearing it would increase egg production in my chickens during the winter months. I was skeptical but I went from 1 egg a day to 3 or 4!
Chad P.Backyard keeper · Verified Buyer

4 Things Larvae Do For Your Flock

What the research on black soldier fly larvae actually found.

01

Better Feather Cover

36% proteinFeathers ≈ 90% keratin

Feathers are about 90% keratin, a protein. In a study of older laying hens, the ones given soldier fly larvae every day had less feather damage after 11 weeks than hens without.

The research: Star et al., Animals, 2020 (feather score 2.2 vs 2.9 at 78 weeks). Jóźwik-Pruska et al., Polymers, 2025 (feather keratin).

02

Lab-Tested For Heavy Metals

Every batch testedNever grown in China

Not all larvae are clean. Every batch of ours is lab-tested for heavy metals, including lead and arsenic, before it ships, and comes back safe. They're never grown in China, so you know exactly what your hens are eating.

03

Richer, Redder Yolks

Yolk colorLutein

Hens fed soldier fly larvae meal laid yolks that were noticeably redder, with more lutein, than hens on a standard diet. Our keepers say the same: "The yolk has gone back to happy orange!" – Janet B.

The research: Secci et al., Animal, 2018 (yolk red index 5.63 vs 1.36; lutein 8.6 vs 4.9 mg/kg).

04

A Safe, Natural Everyday Treat

Nothing addedLab-tested

In a study where larvae made up to 20% of laying hens' daily portion, egg production, egg weight and shell strength held steady. Keep treats to about 10% of what she eats and you're well inside that.

The research: Tahamtani et al., Poultry Science, 2021. Star et al., Animals, 2020 ("egg laying parameters were similar").

Get Your Bag Today
90-Day Quality PromiseNever grown in ChinaNothing added
36%crude protein in every handful
2,255reviews from backyard keepers
Since 2019caring for backyard flocks
Jade F.'s hens in their coop
"My girls LOVE these things!! They just eat them up and get so excited when the bag comes out. Their shells are so strong too!"
Jade F., Verified Buyer
"My entire flock loves the worms. They're a great part of their overall diet, and the eggs that I get have very nice strong shells."
Pat W., Verified Buyer

One Ingredient. Nothing Hidden.

GrubTerra dried black soldier fly larvae 10 lb bag

  • 100% Black Soldier Fly Larvae

    Dried whole. That's the entire ingredient list.

    A handful of GrubTerra black soldier fly larvae
  • 🧪

    Lab-Tested Safe

    Every batch is tested for heavy metals before it ships.

  • 🌎

    Never Grown In China

    Know where your flock's food comes from.

  • ♻️

    Raised On Pre-Consumer Food Waste

    Leftover produce and grain that would otherwise go to landfills.

  • 📦

    Keeps For 24 Months

    Sealed, cool and dry. No fridge needed.

Guaranteed analysis
Crude protein36%
Crude fat35%
Crude fiber10%
Calcium2–5%
Lysine1.1%
Phosphorus0.75%

No fillers No additives No preservatives

Which Bag Fits Your Flock?

A daily treat for your flock is up to 4 lb a month

The 5 lb bag covers a full month.

Based on up to 2 tablespoons (10 g) per hen per day. Feed less? Pick a longer delivery gap in step 2.

Kids feeding GrubTerra larvae to backyard hens

1Shake

Shake the bag. Most keepers say their hens know the sound.

Hens eating in the coop

2Sprinkle

Toss them around the run or over the feed, once a day.

A customer's flock in their run

3Repeat

Keep it daily, especially through molt and winter.

Get Your Bag Today
90-Day Quality PromiseNever grown in ChinaNothing added

What To Expect

What Keepers Notice And When

  1. Day 1

    They come running

    The most common thing keepers tell us: shake the bag and the whole flock shows up.

  2. Week 1

    The daily routine

    Hens learn the sound and wait for you at the gate.

  3. Weeks 2–4

    Eggs and yolks

    Keepers tell us about more eggs, better shells and richer orange yolks.

  4. Molt

    Back in feathers

    Extra protein when she needs it most, so she regrows and gets back to laying.

  5. Winter

    Through the lull

    Energy and protein for short, cold days, when the nest box usually goes quiet.

Based on what keepers tell us in their reviews. Every flock is different.

Why Keepers Switch To GrubTerra Larvae

GrubTerra LarvaeDried Meal­wormsScratch Grains
High in protein
Rich in calcium for shellsLowLow
Never grown in ChinaVariesVaries
Lab-tested for heavy metalsVariesVaries
One ingredient, nothing addedVariesVaries
Raised on food waste
20% off your first orderVariesVaries

The GrubTerra Quality Promise

Made Right, Or We Make It Right

Every batch is lab-tested and every bag is checked before it ships. If your larvae arrive damaged or defective, email us photos within 90 days of delivery and we'll refund or replace them.

  • Refund or replacement on damaged or defective bags
  • Skip, pause or cancel your subscription anytime
  • Real people at support@grubterra.com
Get Your Bag Today

What Other Keepers Are Saying

  • GrubTerra Dried Black Soldier Fly Larvae 10 lb bag
1 10

GrubTerra

GrubTerra Dried Black Soldier Fly Larvae - The Safest Treat For Your Flock

GrubTerra Dried Black Soldier Fly Larvae - The Safest Treat For Your Flock

Supports Steady Laying
Helps reduce molting times.
Creates stronger egg shells
Sustainably raised in USA, Costa Rica, Mexico and Indonesia
Packaged in USA 🇺🇸
$49.95 USD
$0.00 USD $49.95 USD
Sale Sold out
Save $19.95
Save $59.84
Save $159.55

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Our Promise

SUSTAINABLY RAISED
NUTRITIOUS DIET
STRONGER EGGSHELLS
HEALTHIER FEATHER PRODUCTION
NO PRESERVATIVES

Description

  • Sustainably Raised: All our larvae come from farms in Canada, the USA, Mexico, Costa Rica, Indonesia and Malaysia that we've visited and vetted ourselves. Never from China!
  • NUTRITIOUS DIET: GrubTerras black soldier fly larvae are raised on a nutritious diet of vegetables, fruits, and carbohydrates giving them a healthy balanced diet. 
  • SUSTAINABLY RAISED: GrubTerras black soldier fly larvae are raised off of food waste that would have been thrown into landfills and for every 1 pound of grubs purchased 20 pounds of waste was diverted from landfills
  •  STRONGER EGGSHELLS: With 75x more calcium than mealworms, GrubTerra grubs will help your flock lay strong and consistent eggs.  
  • HEALTHIER FEATHER PRODUCTION: GrubTerras Grubs promote stronger eggshells and help hens increase their energy levels and egg production. Grubterra Grubs are also a great supplement during the molting season and in the cold winter months!
  • NO PRESERVATIVES: No additives. No preservatives. 100% natural. Also great for ducks, turkeys, and other fowl, as well as wild birds and fish!

Grubterra Dried Black Soldier Fly larvae are a healthy alternative to dried mealworms. Black Soldier Fly Larvae contain 75 times more calcium than mealworms and have the perfect calcium to phosphorus balance for chickens, turkeys, ducks, and pet birds. Birds fed on Black Soldier Fly Larvae have stronger eggshells, healthier feathers, and a stronger ability to fight sickness due to Black soldier Fly antimicrobial benefits. Our black soldier fly larvae are raised on produce and bakery waste from local supermarkets. 

View full details

75x more calcium than mealworms for stronger eggs and faster feather growth.

GrubTerra's larvae are farm raised in the USA, Canada, Indonesia, and Costa Rica. Supporting small farms around the world.

Black soldier fly larvae help increase egg production in laying hens by

Unadulterated Purity. No Additives.' in place of Naturally Pure. No Preservatives.

GrubTerra Black Soldier Fly Larvae Proven to Increase Egg production

RAISED IN USA & CANADA

All our larvae are grown in Canada, the United States, Costa Rica, and Indonesia. Never from China!

STRONGER EGGSHELLS

With 75x more calcium than mealworms, GrubTerra grubs will help your flock lay more eggs. With stronger shell.

Increased Egg Production

GrubTerras Grubs promote stronger eggshells and help hens increase their energy levels and egg production. Grubterra Grubs are also a great supplement during molting season and in the cold winter months!

NO PRESERVATIVES

No additives. No preservatives. Our larvae are also great for ducks, turkeys, and other fowl, as well as wild birds and fish!

NUTRITIOUS DIETS

GrubTerra’s black soldier fly larvae are raised on a nutritious diet of vegetables, fruits, and carbohydrates giving them a healthy balanced diet.

SUSTAINABLY RAISED

GrubTerra’s black soldier fly larvae are raised off of food waste that would have been thrown into landfills and for every 1 pound of grubs purchased 20 pounds of waste was diverted from landfills

Trusted by many chicken and bird lovers

Customer photo
5 out of 5 stars

The amount of eggs we get now is CRAZY!!! We have 6 chickens. Before we started feeding them GrubTerra we were lucky to get 1-2 eggs a day. Now we are getting 4-5 a day! We feed Black soldier fly larvae to our chickens every day and the health of our birds has never been better.

Jay. C and Lisa. C

Customer Reviews

Overall rating: 4.9 / 5 from 2255 reviews.

When I first got my Grub Terra I fed my chickens (7) about a cup a day for 3 days. Then only once a week after that. They love them and after feeding them the Grub Terra black fly larva they started producing more and bigger eggs. I also noticed they’re feathers looking shinier and healthier. It really does supplement what they need.

Guy G. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae - The Safest Treat For Your Flock

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae - The Safest Treat For Your Flock

Our chickens LOVE these. I love that this company is getting rid of food waste and turning it into a healthy treat for my chickens. We got our flock as all adults ranging in different ages. Maybe it's just a coincidence or maybe it is the help of these treats that has gotten us from 3-5 eggs a day to 4-7 eggs a day since we started treating them to these! Either way, we are very happy with these! Am I the only one that thinks they smell good too? LOL

Jodie V. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae - The Safest Treat For Your Flock

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 20lb

Thanks GrubTerra!! My flock loves the dried black soldier fly larvae snack that I add to their daily feeds. The egg production really seemed to pick up here at Blue Mountain Farm, after adding this daily treat. If the ladies had thumbs, they’d give y’all a thumbs up! Thanks again! Cara @femalefarmer_

Cara E. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 20lb

Our family chickens had stopped laying eggs for about 2-1/2 months. I started supplementing their diet with the Grub Terra black fly larvae along with oyster shells and they have started laying again. Yea! Thank you!

Justin L. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 20lb

My ladies LOVE these! And I’ve seen darker yolks and healthier feathers since I started giving these out as treats!

Katie Z. 5/5 Verified

GrubTerra Dried Larvae Sample

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 10lb.

Everyday the ducks a the chickens line up for their treats. As soon as they hear the sliding door open they rush over as fast as their little legs will waddle

Sara R. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 10lb.

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 20lb

I give this to my 5 girls every night before bedtime to give them a calcium boost. When they hear the can lid open they know it's time for treats and come running!

Kelly K. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 20lb

Customer photo review of GrubTerra Dried Larvae Sample

I love how nutritious these are!! Treats are great. But healthy nutritious treats are amazing!!

Maureen G. 5/5 Verified

GrubTerra Dried Larvae Sample

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 10lb.

My chickens love the Black Solider Fly Larvae. I end up going through way more than I thought because they will pass up other treats to eat these.

Tristan D. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 10lb.

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 10lb

My hens are absolutely bonkers for these black soldier flies! I started mixing them into their morning feeding as a daily treat when they were pullets (middle photo), then gradually scattered them so they could free range in their run and "hunt" them. Now I use them as an evening treat as the light goes on in their coop and they forage and toss the GrubTerra hemp bedding around for me! Win-win! They are plump, healthy, contented birds. Their first molt was almost nothing, and they lay eggs like crazy. These are an irreplaceable part of my hens' daily routine and health, and it's good for the environment because these flies consume waste during production. God bless you, GrubTerra, my hens and I thank you! Maryanna

Mary C. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 10lb

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 10lb

I mix the soldier fly larvae with scratch and black sunflower seeds. We have a feeder in the enclosure with good feed in it, but the hens run out in their yard first thing every day to get their treat. I think the Grubterra soldier fly larvae is their favorite part.

Kim H. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 10lb

Customer photo review of GrubTerra Dried Larvae Sample

We’ve been buying Grub for the last couples of years. Chickens are very healthy and happy. And, very fast service.

M. Theresa L. 5/5 Verified

GrubTerra Dried Larvae Sample

Customer photo review of GrubTerra Dried Black Soldier Fly Larvae 10lb

I used to get a cheaper brand from China, but wanted something better for my hens. After researching, I found Grubterra with quality and better price. My hens make the final decision with a taste test. In one hand their old brand, grubterra in the other. I got a small bag. My hens at first went for the old brand until my top hen at the (Sour II) checked out the new brand. She started doing the high chirping for high value food. Everyone tried to get some. the lowest hens I had to give their taste test away from the flock since the higher ups won't share. All 32 hens picked Grubterra over their old cheaper brand. They're happy with their morning treats, so I'm happy. When the coop auto door opens, I watch my mini raptor race to the back door. They'll peck or jump up against the glass door once they see me with their cup of treats

Jill H. 5/5 Verified

GrubTerra Dried Black Soldier Fly Larvae 10lb

Frequently Asked Questions

What is the shelf life of GrubTerra black soldier fly larvae?

The shelf life of GrubTerra is 24 months upon delivery.

Can GrubTerras larvae be used for all types of animals, or are they specifically for certain species?

GrubTerra dried black soldier fly larvae are primarily for backyard poultry and wild birds. Other animals, such as dogs, cats, and livestock, can consume black soldier fly larvae in moderation.

Are GrubTerras products organic?

GrubTerra Products are not organic; however, we source from high-quality farmers around the world and focus on using the highest quality feed ingredients for our larvae. GrubTerra products are non GMO.

How can I incorporate GrubTerras larvae into my pet's diet?

A few handfuls can be sprinkled into poultry and wild bird feed or around the coop daily to incorporate them into their diets.